Buildings

When adding the buildings, please do not name the building after the anmials inside, but tag these with an extra node.
Of course if the building is really named, it should be tagged so, e.g. name=Elephant House.

How to Structure

Please do not structure the zoo via multiple polygons containing e.g. leisure=park or attraction=zoo, just to make them visible in major maps.
You can do this better (because more compliant) with: